Composition of matter for filling cracks in metal



i To all whom it may concern:

UNITED STATES PATENTJOFFICE.

cm 1'. nnnrsoir, or ween-awn, rmsynvlmm. conrosrrron or 11.1mm *ron rrnnme qmexs m METAL.

No Drawing.

Be it known that I, CARL F. AnLIsOm-a citizen of the United States, residing at Woodlawn, in the county-of Beaver and State of Pennsylvania, have invented oer tain new and useful Improvements in (30111 osition of Matter for Filling Cracks 1n etal, of which the following is a speclfication. 1

My invention relates to a composition of matter for filling cracks in metal and particularly cast iron, steel and the like, to produce a watertight joint.

In accordance with my invention, I referably mix ten parts by weight of pow ered alummumf two parts by weight of zincyand eighty-eight parts by weight of sulfur, and heat the mixture to a fusing or melting-temperatureof about 240 F at which temperature the sulfur melts and a homogeneous.

mass is produced which may be cast into bars or sticks. The invention isin no sense restricted to these precise proportions, while they are preferred, as I have found that satisfactory results are obtained by combining from six to'twenty parts'by weight of aluminum, one to two parts by wei ht of 'zinc, and a "sufiicient amount of sul r by weight whereby the entire mass has one hundred parts by weight. I have also found-that other elements may-be added to the alloy embodying the elements above j stated in either of the proportions stated,

such elements bein iron, chromium, :eadmium, blsmuth an,

antimony. These elements are added in small amount, and their total by weight should not exceed two per cent. of the total weight of the mass.

I have found that my solder composition 0 is particularly useful in filhn cracks in water jackets and crank cases 0 automobile Specification of Letters Patent.

2 Application filed Kay 22,

1919. Serial 1 299,979.

engines,-but it may be used for filling cracks I It 1s to be understood that the formsof m inventionherewithdescribedare to be ta en as the preferred examples'of the same,

and that var ous chan maybe resorted to in the proportions of t e several ingredients and that known chemical equivalents may be employed without departing from the spirit of my invention or the scope of the subjoinedclaims.

Patented Aug. 17,1920.

The tendency fur 1s to creep an fill up the entire :Having thus described my. invention, I

claim:

1. A composition of matter for filling cracks in metal, comprising a major portion by weight of sulfur anda minor portion.

powdered aluminum and powby weight of dered zinc.

. 2. A composition of matter for filling cracks in metal comprising from 6 to ,20

parts by weight of powdered-- aluminum, 1

to 2 parts-by weight of powdered zinc and sufliclent sulfur'tomake 100 parts by weight of composition:

Intestimon whereof I afiix my signature 'in presence 0 two witnesses.

I Wit'nesses: D. ,J. HALmsnY,

Anna E; SoLKovr;

. QARL F. ALLISON. 

